CN103352901B - Detaching device for pin shaft - Google Patents
Detaching device for pin shaft Download PDFInfo
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- CN103352901B CN103352901B CN201310293413.9A CN201310293413A CN103352901B CN 103352901 B CN103352901 B CN 103352901B CN 201310293413 A CN201310293413 A CN 201310293413A CN 103352901 B CN103352901 B CN 103352901B
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- oil cylinder
- detaching device
- pin shaft
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Abstract
The invention provides a kind of detaching device for pin shaft, comprising: support; Oil cylinder, is arranged on the side of support, for applying ejecting force to bearing pin to be removed.The present invention uses oil cylinder to provide the ejecting force of dismounting required for bearing pin, do not need to adopt mode of manually knocking of the prior art, labor intensity during because this reducing dismounting and efficiency, also can not owing to repeatedly knocking the problem causing pin roll end face to be out of shape, therefore, the bearing pin disassembled still can reuse, and reduces maintenance cost.In addition, owing to not needing manually to knock specially, the potential safety hazard during operation of prior art high and medium is therefore avoided.
Description
Technical field
The present invention relates to mechanical field, more specifically, relate to a kind of detaching device for pin shaft.
Background technique
The connection of the connection between the distributing arm support of concrete mixer and jib fourbar linkage is all formed (copper sheathing especially, being also provided with band oil leab between bearing pin and axle sleeve) by hinge.When concrete mixer is in maintenance or when manufacturing again, often need the bearing pin disassembled on jib.
As shown in Figure 1, usually adopt the method for artificial percussion vibration people pressure bell 130 to be knocked along the direction of arrow in Fig. 1 by bearing pin 30 in prior art, thus just bearing pin 30 and copper sheathing pound out axle sleeve hole gradually.
Owing to adopting artificial mode, therefore, during dismounting, not only labor intensity is large, the take-down time is long, and easily causes damage to bearing pin 30 and copper sheathing, and pin roll end face may be caused to be out of shape.Further, when bearing pin 30 corrosion or clamping stagnation, then traditional horse of drawing can only be adopted to dismantle, the bearing pin under dismounting often damages comparatively large, cannot reuse.In addition, because the jib of concrete mixer belongs to large-sized structural parts, during dismounting bearing pin 30, often need high-lift operation, adopt the method for dismounting of artificial percussion vibration to there is larger potential safety hazard, easily security incident occurs.
Summary of the invention
The present invention aims to provide a kind of detaching device for pin shaft, and during to solve dismounting hinge pin in prior art, labor intensity is large, efficiency is low, the problem that easily causes bearing pin to damage.
For solving the problems of the technologies described above, according to an aspect of the present invention, provide a kind of detaching device for pin shaft, comprising: support; Oil cylinder, is arranged on the side of support, for applying ejecting force to bearing pin to be removed.
Further, support comprises: the first clamping plate, and oil cylinder is connected with the first clamping plate, the first clamping plate offers the opening supplying the piston rod of oil cylinder to pass through; Second clamping plate, parallel with the first clamping plate and removably connect, form grasping part between the first clamping plate and the second clamping plate, the second clamping plate are provided with bearing pin outlet.
Further, support also comprises: setting sleeve, and setting sleeve is clamped between the first clamping plate and the second clamping plate; Fastening piece, fastening piece passes the first clamping plate, setting sleeve and the second clamping plate successively, to be removably connected with the second clamping plate by the first clamping plate.
Further, setting sleeve comprises first set that length fixes and the second cover for length adjustment.
Further, the opening of the first clamping plate is provided with oil cylinder seat, and oil cylinder is connect by oil cylinder seat and the first clamping plate method.
Further, detaching device for pin shaft also comprises: hydraulic drive mechanism, and hydraulic drive mechanism comprises oil pump and the first selector valve, and the pressure oil that oil pump exports is connected with oil cylinder by the first selector valve, to control the flexible of oil cylinder.
Further, detaching device for pin shaft also comprises: lubricant pipe, for being connected with the oil leab of bearing pin; Hydraulic drive mechanism also comprises: pressure switch, for detecting the pressure of lubricant pipe, at pressure lower than sending fuel cut-off signal during predetermined pressure; Second selector valve, is connected with lubricant pipe, for opening or cut off the fuel feeding of lubricant pipe; With the 3rd selector valve, oil pump is connected with the filler opening of the second selector valve by the 3rd selector valve, and the 3rd selector valve cuts off the pressure oil flowing to the second selector valve when receiving fuel cut-off signal.
Further, detaching device for pin shaft also comprises depression bar, depression bar is provided with the breach passed through for lubricant pipe, and depression bar is clamped between bearing pin and the piston rod driving oil cylinder.
Further, hydraulic drive mechanism also comprises: reduction valve, is arranged in series in the oil circuit between the second selector valve and lubricant pipe.
Further, hydraulic drive mechanism also comprises: throttle valve, is arranged in series in the oil circuit between the second selector valve and lubricant pipe.
The present invention uses oil cylinder to provide the ejecting force of dismounting required for bearing pin, do not need to adopt mode of manually knocking of the prior art, labor intensity during because this reducing dismounting and efficiency, also can not owing to repeatedly knocking the problem causing pin roll end face to be out of shape, therefore, the bearing pin disassembled still can reuse, and reduces maintenance cost.In addition, owing to not needing manually to knock specially, the potential safety hazard during operation of prior art high and medium is therefore avoided.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 diagrammatically illustrates the unloading process schematic diagram of bearing pin in prior art;
Fig. 2 diagrammatically illustrates the structural representation of the detaching device for pin shaft in the present invention;
Fig. 3 diagrammatically illustrates the schematic diagram of the hydraulic drive mechanism in the present invention; And
Fig. 4 diagrammatically illustrates schematic diagram when using the present invention to dismantle bearing pin.
Reference character in figure: 10, support; 11, the first clamping plate; 12, the second clamping plate; 12a, bearing pin export; 13, setting sleeve; 13a, first set; 13b, the second cover; 14, fastening piece; 15, oil cylinder seat; 16, the first waist shaped hole; 17, the second waist shaped hole; 20, oil cylinder; 30, bearing pin; 40, oil pump; 50, the first selector valve; 60, lubricant pipe; 70, pressure switch; 80, the second selector valve; 90, the 3rd selector valve; 100, depression bar; 101, breach; 110, reduction valve; 120, throttle valve; 130, bell is pressed; 140, the first jib; 150, the second jib; 160, recess; 170, series flow control valve; 180, one-way valve; 190, relief valve; 200, pressure gauge.
Embodiment
Below embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As Fig. 2 and Fig. 3, the invention provides a kind of detaching device for pin shaft, comprising: support 10; Oil cylinder 20, is arranged on the side of support 10, for applying ejecting force to bearing pin 30 to be removed.
As shown in Figure 2, oil cylinder 20 is installed over the mount 10 along the direction perpendicular to support 10, and the piston rod of oil cylinder 20 is arranged towards the inside of support 10.During use, support 10 is erected at the outside of the bearing pin 30 needing dismounting, and makes the piston rod of oil cylinder 20 aim at the end face of bearing pin 30.When the piston rod of oil cylinder 20 stretches out, piston rod applies an ejecting force to the right to bearing pin 30, thus is ejected gradually by bearing pin 30, to reach the object of dismounting.
The present invention uses oil cylinder 20 to provide the ejecting force of dismounting required for bearing pin 30, do not need to adopt mode of manually knocking of the prior art, labor intensity during because this reducing dismounting and efficiency, also can not owing to repeatedly knocking the problem of the face deformation causing bearing pin 30, therefore, the bearing pin 30 disassembled still can reuse, and reduces maintenance cost.In addition, owing to not needing manually to knock specially, the potential safety hazard during operation of prior art high and medium is therefore avoided.
Preferably, support 10 comprises: the first clamping plate 11, and oil cylinder 20 is connected with the first clamping plate 11, the first clamping plate 11 offers the opening supplying the piston rod of oil cylinder 20 to pass through; Second clamping plate 12, parallel with the first clamping plate 11 and removably connect, form grasping part between the first clamping plate 11 and the second clamping plate 12, the second clamping plate 12 are provided with bearing pin outlet 12a.Please refer to Fig. 2, because the first clamping plate 11 and the second clamping plate 12 removably connect, therefore, utilize the first clamping plate 11 and the second clamping plate 12, support 10 can be installed on parts (two arm joints etc. of such as concrete mixer) that bearing pin 30 connects, with adapt to different size bearing pin 30 and by this bearing pin 30 connected elements.During use, the first clamping plate 11 and the second clamping plate 12 lay respectively at the both end sides of bearing pin 30, in the grasping part of the parts connected by bearing pin 30 between the first clamping plate 11 and the second clamping plate 12.Like this, support 10 just can utilize these parts to be reliably fixed up, and keeps over the mount 10, no longer needs manpower to assist, reduces labor intensity.
Preferably, the opening of the first clamping plate 11 is provided with oil cylinder seat 15, and oil cylinder 20 is connect by oil cylinder seat 15 and the first clamping plate 11 method.Especially, oil cylinder seat 15 is outstanding to the side away from the second clamping plate 12, and in one embodiment, oil cylinder seat 15 can be tubular.In the side of oil cylinder seat 15, can flange be set, like this, by this flange, oil cylinder 20 and oil cylinder seat 15 can be coupled together.Obviously, between oil cylinder seat 15 and oil cylinder 20, stud also can be adopted to be connected with nut or other linkage structures.
Preferably, support 10 also comprises: setting sleeve 13, and setting sleeve 13 is clamped between the first clamping plate 11 and the second clamping plate 12; Fastening piece 14, fastening piece 14 passes the first clamping plate 11, setting sleeve 13 and the second clamping plate 12 successively, to be removably connected with the second clamping plate 12 by the first clamping plate 11.Especially, the length of setting sleeve 13 can be determined according to the width of the parts connected by bearing pin 30.Preferably, fastening piece 14 can adopt stud bolt etc., can be that bolt connects or other Connecting format.It should be noted that, setting sleeve 13 limits the relative distance between the first clamping plate 11 and the second clamping plate 12, avoids the end and the root that excessively extrude jib during the two clamping, causes the problem that jib damages.The first clamping plate 11 and the second clamping plate 12 can be made to clamp jib by fastening piece 14, support force required during to provide oil cylinder 20 action.
Preferably, the first clamping plate 11 are provided with the second waist shaped hole 17, fastening piece 14 of the first waist shaped hole 16, second clamping plate 12 being provided with and matching with the first waist shaped hole 16 through the first waist shaped hole 16 and the second waist shaped hole 17.Like this, this fastening piece 14 can regulate along the bearing of trend of the first waist shaped hole 16 and the second waist shaped hole 17, during installation, the second waist shaped hole 17 just can be utilized to regulate the position of the first clamping plate 11 and the second clamping plate 12, enable the piston rod of oil cylinder 20 aim at the end of bearing pin 30.Preferably, detaching device for pin shaft also has another fastening piece 14 and is set in the setting sleeve 13 of its outside, this another fastening piece 14 of fastening piece 14 and this is separately positioned on the both sides (both sides up and down of such as jib) of the parts be connected by bearing pin 30, to realize the object of clamping.Especially, the position being arranged on the fastening piece 14 of downside is fixing, that is can not move relative to the first clamping plate 11 and the second clamping plate 12 as the fastening piece 14 of upside.Visible; adopt first clamping plate 11 and second clamping plate 12 with waist shaped hole; can oil cylinder 20 easily on adjusting pole 10 and the relative position between bearing pin 30 to be removed; such operator is when high-altitude; do not need the operation carrying out large workload, be conducive to the personal safety protecting operator.
In one embodiment, setting sleeve 13 comprises first set 13a that length fixes and the second cover 13b for length adjustment.Wherein, the length of first set 13a is fixing, in fact, and the second cover 13b that multiple length can be coordinated different.Like this, the first set 13a of second of different length the cover 13b and fixed length is combined, just can form the setting sleeve 13 of different length, to realize different orientation distances.Visible, length-adjustable setting sleeve 13, can carry out accommodation according to the different in width of jib.Such as, the second suitable cover 13b can be selected to be combined to form the length equal with the jib width of clamping place with first set 13a.
Please refer to Fig. 3, preferably, detaching device for pin shaft also comprises: hydraulic drive mechanism, and hydraulic drive mechanism comprises oil pump 40 and the first selector valve 50, and the pressure oil that oil pump 40 exports is connected with oil cylinder 20 by the first selector valve 50, to control the flexible of oil cylinder 20.Such as, the first selector valve 50 can be adopted manually, and when the first selector valve 50 works right working position, the pressure oil from oil pump 40 enters the rodless cavity of oil cylinder 20, and now, the piston rod of oil cylinder 20 is protruding, to provide ejecting force.When the first selector valve 50 works in left station, the pressure oil from oil pump 40 enters the rod chamber of oil cylinder 20, and now, the piston rod of oil cylinder 20 is regained.During actual use, operator can operate the handle of the first selector valve 50, switch the station of the first selector valve 50.Preferably, buffer loop (such as, buffer loop can comprise one-way valve 180 etc.) can be set, to reduce impact during oil cylinder 20 high-speed motion at the rodless cavity place of oil cylinder 20.Preferably, the outlet line of oil pump 40 is also provided with pressure gauge 200, so that viewing system pressure.
Preferably, detaching device for pin shaft also comprises: lubricant pipe 60, for being connected with the oil leab of bearing pin 30; Hydraulic drive mechanism also comprises: pressure switch 70, for detecting the pressure of lubricant pipe 60, at pressure lower than sending fuel cut-off signal during predetermined pressure; Second selector valve 80, is connected with lubricant pipe 60, for opening or cut off the fuel feeding of lubricant pipe 60; With the 3rd selector valve 90, oil pump 40 is connected with the filler opening of the second selector valve 80 by the 3rd selector valve 90, and the 3rd selector valve 90 cuts off the pressure oil flowing to the second selector valve 80 when receiving fuel cut-off signal.Preferably, lubricant pipe 60 has threaded nozzle, to be connected with the lubricating oil path of bearing pin 30.The 3rd selector valve 90 utilizing pressure switch 70 and link with it, the pressure change in dynamic induction lubricating pipe, prevents high pressure liquid force feed from spraying and the security incident of initiation.
Incorporated by reference to Fig. 2 and Fig. 3, during dismounting, lubricant pipe 60 is installed to the oil leab place of bearing pin 30, especially, can install a lubricant pipe 60 respectively in the left and right sides of bearing pin 30.Especially, the lubricant pipe 60 of the band nozzle in the present invention, can be that a hard tube and a flexible pipe are arranged in pairs or groups, can also be that a high-pressure rubber pipe is divided into two-way by tee union.The oil groove of copper sheathing is pressed into (especially through the oil leab of bearing pin 30 by the nozzle of lubricant pipe 60; bearing pin 30 is not when dismantling; between oil groove and the external world, isolation forms closed cavity; certain pressure oil can be kept); like this; oil film can be formed by combination surface between bearing pin 30 and copper sheathing, to play lubrication and protective action.Like this, even if bearing pin 30 there occurs corrosion or clamping stagnation, so also can form certain lubrication, thus avoid causing larger damage to bearing pin.
Visible; pressure is utilized directly high-voltage oil liquid to be delivered to the oil groove between bearing pin 30 and copper sheathing by lubricant pipe 60 and to form lubrication; facilitate the dismounting of bearing pin on the one hand; on the other hand; lubricant film can be formed again; protection part surface is not damaged easily, avoids the problem easily causing axle sleeve and bearing pin surface to be pulled when directly dismantling bearing pin 30, reduces part surface damage probability.
Preferably, as shown in Figure 2, detaching device for pin shaft also comprises depression bar 100, depression bar 100 is provided with the breach 101 passed through for lubricant pipe 60, and depression bar 100 is clamped between bearing pin 30 and the piston rod driving oil cylinder 20.Utilize breach 101, can when not affecting end abutment with bearing pin 30 of depression bar 100, by the object that lubricant pipe 60 is connected with the oil leab on the right side of bearing pin 30.
Preferably, as shown in Figure 3, hydraulic drive mechanism also comprises: reduction valve 110, is arranged in series in the oil circuit between the second selector valve 80 and lubricant pipe 60.Preferably, hydraulic drive mechanism also comprises: throttle valve 120, is arranged in series in the oil circuit between the second selector valve 80 and lubricant pipe 60.Utilize the flow of the adjustable lubricating oil of throttle valve 120, prevent the excessive ejection of lubricating oil from causing waste; Profit reduction valve 110 adjustable lubrication oil pressure, avoids that oil liquid pressure is excessive causes potential safety hazard.
Please refer to Fig. 2 and Fig. 4, below process of installing and using of the present invention is described in detail.
First, suitably launch the first jib 140 and the second jib 150, to make to form recess 160 therebetween, after having lifted jib, and the nozzle of lubricant pipe 60 is screwed into the oil leab place of bearing pin 30.Then, select suitable first set 13a and second cover 13b, the two total length is made to equal the width of clamped jib, then first set 13a and second cover 13b is placed in recess 160 place (or other positions jib easily supporting and regulates) formed between the first jib 140 and the second jib 150, then fastening piece 14 is regulated, make the left end of the piston rod of oil cylinder 20 just to the right-hand member of depression bar 100, regulate the circular port at the second clamping plate 12 place simultaneously, it is made to face bearing pin 30 to be removed, with make bearing pin 30 dismantle time, can without hindrance every ejected by this hole.Then, utilize fastening piece 14 that first clamping plate 11 and the second clamping plate 12 are clamped the both sides of jib, support force required during to provide oil cylinder 20 action.Finally, depression bar 100 is placed between the piston rod of oil cylinder 20 and the end face of bearing pin 30, the lubricant pipe 60 of this end is passed from the breach 101 of depression bar 100, to be adjusted good after, clamp this depression bar 100 with clamp, then operate hydraulic drive mechanism, carry out dismounting hinge pin.
Please refer to Fig. 3, below the working principle of hydraulic drive mechanism is described in detail.
The work of oil cylinder 20 is first selector valve 50(can be such as 3-position 4-way hand-operated direction valve) control, when the first selector valve 50 is in meta, its filler opening communicates with oil outlet, and oil cylinder 20 does not move; When the first selector valve 50 is in right position, the pressure oil from oil pump 40 flows into from the rodless cavity of oil cylinder 20, the piston rod of oil cylinder 20 to left movement, with provide dismounting bearing pin pressure; When the first selector valve 50 is positioned at left position, moving right of oil cylinder 20, when piston movement is to the right-hand member of oil cylinder 20, high pressure oil enters rodless cavity from the buffer loop of band one-way valve 180, thus has played buffer function.
Wherein, the movement velocity of the piston rod of oil cylinder 20 sets up control by series flow control valve 170.In the course of the work, when the outlet pressure of oil pump 40 is greater than default pressure, relief valve 190 is opened, and performs pressure adjusting function, the outlet pressure of oil pump 40 is returned in the scope of setting.
3rd selector valve 90(such as can for two position, three-way electromagnetic change valve) normality time work in right position, the second selector valve 80(can be such as two position three-way valve) by handle Non-follow control.When the second selector valve 80 works in right position; the high pressure liquid force feed after flow is adjusted through throttle valve 120; after reduction valve 110 pressure regulation; by the nozzle of lubricant pipe 60 oil groove through the oil leab press-in copper sheathing of bearing pin 30; so; oil film is formed, to play lubrication and protective action at the combination surface of bearing pin 30 and copper sheathing.
Pressure switch 70(is pressure relay such as) coordinate with the 3rd selector valve 90, play safety protection effect.After bearing pin 30 is moved a certain distance by the promotion of the piston rod of oil cylinder 20, the oil groove of copper sheathing communicates with external atmosphere pressure, and pressure reduces.Now, pressure switch 70 action, triggers after making it commutate with the electromagnet of the 3rd selector valve 90 and works in left position, so, lubrication passages emptying, thus can prevent high-voltage oil liquid from overflowing instantaneously, eliminate potential safety hazard.When the second selector valve 80 works in left position, lubricant pipe 60 nozzle is no longer to the oil leab oil jet lubrication of bearing pin 30.
The present invention provides dismounting pressure by the mode of hydraulic pressure, relative to the mode of manually knocking in prior art, alleviate labor intensity, improve operating efficiency, simultaneously, depression bar 100 being set between the piston rod of bearing pin 30 and oil cylinder 20, part end face size and the damage of appearance profile when dismantling can being prevented.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a detaching device for pin shaft, is characterized in that, comprising:
Support (10);
Oil cylinder (20), is arranged on the side of described support (10), for applying ejecting force to bearing pin (30) to be removed;
Described support (10) comprising:
First clamping plate (11), described oil cylinder (20) is connected with described first clamping plate (11), described first clamping plate (11) offers the opening supplying the piston rod of described oil cylinder (20) to pass through;
Second clamping plate (12), parallel with described first clamping plate (11) and removably connect, form grasping part between described first clamping plate (11) and described second clamping plate (12), described second clamping plate (12) are provided with bearing pin outlet (12a).
2. detaching device for pin shaft according to claim 1, is characterized in that, described support (10) also comprises:
Setting sleeve (13), described setting sleeve (13) is clamped between described first clamping plate (11) and described second clamping plate (12);
Fastening piece (14), described fastening piece (14) passes described first clamping plate (11), described setting sleeve (13) and described second clamping plate (12) successively, described first clamping plate (11) to be removably connected with described second clamping plate (12).
3. detaching device for pin shaft according to claim 2, is characterized in that, described setting sleeve (13) comprises the fixing first set (13a) of length and the second cover (13b) for length adjustment.
4. detaching device for pin shaft according to claim 1, it is characterized in that, the opening of described first clamping plate (11) is provided with oil cylinder seat (15), and described oil cylinder (20) is connect by described oil cylinder seat (15) and described first clamping plate (11) method.
5. detaching device for pin shaft according to claim 1, it is characterized in that, described detaching device for pin shaft also comprises: hydraulic drive mechanism, described hydraulic drive mechanism comprises oil pump (40) and the first selector valve (50), the pressure oil that described oil pump (40) exports is connected with described oil cylinder (20) by described first selector valve (50), to control the flexible of described oil cylinder (20).
6. detaching device for pin shaft according to claim 5, is characterized in that, described detaching device for pin shaft also comprises: lubricant pipe (60), for being connected with the oil leab of described bearing pin (30);
Described hydraulic drive mechanism also comprises:
Pressure switch (70), for detecting the pressure of described lubricant pipe (60), at described pressure lower than sending fuel cut-off signal during predetermined pressure;
Second selector valve (80), is connected with described lubricant pipe (60), for opening or cut off the fuel feeding of described lubricant pipe (60); With
3rd selector valve (90), described oil pump (40) is connected with the filler opening of described second selector valve (80) by described 3rd selector valve (90), and described 3rd selector valve (90) cuts off the pressure oil flowing to described second selector valve (80) when receiving described fuel cut-off signal.
7. detaching device for pin shaft according to claim 6, it is characterized in that, described detaching device for pin shaft also comprises depression bar (100), described depression bar (100) is provided with the breach (101) passed through for described lubricant pipe (60), described depression bar (100) is clamped between the piston rod of described bearing pin (30) and described driving oil cylinder (20).
8. detaching device for pin shaft according to claim 6, it is characterized in that, described hydraulic drive mechanism also comprises: reduction valve (110), is arranged in series in the oil circuit between described second selector valve (80) and described lubricant pipe (60).
9. detaching device for pin shaft according to claim 6, it is characterized in that, described hydraulic drive mechanism also comprises: throttle valve (120), is arranged in series in the oil circuit between described second selector valve (80) and described lubricant pipe (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310293413.9A CN103352901B (en) | 2013-07-12 | 2013-07-12 | Detaching device for pin shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310293413.9A CN103352901B (en) | 2013-07-12 | 2013-07-12 | Detaching device for pin shaft |
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| Publication Number | Publication Date |
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| CN103352901A CN103352901A (en) | 2013-10-16 |
| CN103352901B true CN103352901B (en) | 2015-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310293413.9A Active CN103352901B (en) | 2013-07-12 | 2013-07-12 | Detaching device for pin shaft |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769853B (en) * | 2014-02-26 | 2016-04-20 | 山东大学 | Hydraulic cylinder quick change frock tool and using method thereof during a kind of loading machine field work |
| CN113814701A (en) * | 2021-10-25 | 2021-12-21 | 山东里能鲁西矿业有限公司 | Mining coal mining hydraulic pin dismounting device and matched dismounting method |
| CN115139081B (en) * | 2022-07-15 | 2024-01-09 | 郑州航空港区速达工业机械服务有限公司 | Vibrating mechanism for disassembling shaft body of mining machinery |
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| CN203006794U (en) * | 2012-12-27 | 2013-06-19 | 中联重科股份有限公司 | Arm pin inserting and extracting mechanism and crane device with same |
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| US7117712B1 (en) * | 2001-03-30 | 2006-10-10 | Gabriel Technologies Corp. | Removal tool |
| CN102501056A (en) * | 2011-10-31 | 2012-06-20 | 中联重科股份有限公司 | Pin assembling and disassembling device |
| CN202317617U (en) * | 2011-11-08 | 2012-07-11 | 中联重科股份有限公司 | Power-driven plug-pull-pin device |
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| Publication number | Publication date |
|---|---|
| CN103352901A (en) | 2013-10-16 |
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